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eb5d44eb | 1 | /* |
2 | * IS-IS Rout(e)ing protocol - isisd.h | |
3 | * | |
4 | * Copyright (C) 2001,2002 Sampo Saaristo | |
5 | * Tampere University of Technology | |
6 | * Institute of Communications Engineering | |
7 | * | |
8 | * This program is free software; you can redistribute it and/or modify it | |
9 | * under the terms of the GNU General Public Licenseas published by the Free | |
10 | * Software Foundation; either version 2 of the License, or (at your option) | |
11 | * any later version. | |
12 | * | |
13 | * This program is distributed in the hope that it will be useful,but WITHOUT | |
14 | * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or | |
15 | * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for | |
16 | * more details. | |
17 | ||
18 | * You should have received a copy of the GNU General Public License along | |
19 | * with this program; if not, write to the Free Software Foundation, Inc., | |
20 | * 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. | |
21 | */ | |
22 | ||
23 | #ifndef ISISD_H | |
24 | #define ISISD_H | |
25 | ||
91283e76 DS |
26 | #include "vty.h" |
27 | ||
eb5d44eb | 28 | #define ISISD_VERSION "0.0.7" |
eb5d44eb | 29 | |
f3ccedaa CF |
30 | #include "isisd/isis_redist.h" |
31 | ||
eb5d44eb | 32 | /* uncomment if you are a developer in bug hunt */ |
33 | /* #define EXTREME_DEBUG */ | |
34 | /* #define EXTREME_TLV_DEBUG */ | |
35 | ||
eb5d44eb | 36 | struct isis |
37 | { | |
38 | u_long process_id; | |
39 | int sysid_set; | |
f390d2c7 | 40 | u_char sysid[ISIS_SYS_ID_LEN]; /* SystemID for this IS */ |
3f045a08 | 41 | u_int32_t router_id; /* Router ID from zebra */ |
f390d2c7 | 42 | struct list *area_list; /* list of IS-IS areas */ |
eb5d44eb | 43 | struct list *init_circ_list; |
f390d2c7 | 44 | struct list *nexthops; /* IPv4 next hops from this IS */ |
eb5d44eb | 45 | #ifdef HAVE_IPV6 |
f390d2c7 | 46 | struct list *nexthops6; /* IPv6 next hops from this IS */ |
47 | #endif /* HAVE_IPV6 */ | |
48 | u_char max_area_addrs; /* maximumAreaAdresses */ | |
49 | struct area_addr *man_area_addrs; /* manualAreaAddresses */ | |
50 | u_int32_t debugs; /* bitmap for debug */ | |
51 | time_t uptime; /* when did we start */ | |
d3d7474b | 52 | struct thread *t_dync_clean; /* dynamic hostname cache cleanup thread */ |
f390d2c7 | 53 | |
f3ccedaa | 54 | struct route_table *ext_info[REDIST_PROTOCOL_COUNT]; |
eb5d44eb | 55 | }; |
56 | ||
3f045a08 JB |
57 | extern struct isis *isis; |
58 | ||
f390d2c7 | 59 | struct isis_area |
eb5d44eb | 60 | { |
fac1f7cc | 61 | struct isis *isis; /* back pointer */ |
62 | dict_t *lspdb[ISIS_LEVELS]; /* link-state dbs */ | |
63 | struct isis_spftree *spftree[ISIS_LEVELS]; /* The v4 SPTs */ | |
64 | struct route_table *route_table[ISIS_LEVELS]; /* IPv4 routes */ | |
eb5d44eb | 65 | #ifdef HAVE_IPV6 |
fac1f7cc | 66 | struct isis_spftree *spftree6[ISIS_LEVELS]; /* The v6 SPTs */ |
67 | struct route_table *route_table6[ISIS_LEVELS]; /* IPv6 routes */ | |
eb5d44eb | 68 | #endif |
b20ccb3a CF |
69 | #define DEFAULT_LSP_MTU 1497 |
70 | unsigned int lsp_mtu; /* Size of LSPs to generate */ | |
f390d2c7 | 71 | struct list *circuit_list; /* IS-IS circuits */ |
72 | struct flags flags; | |
73 | struct thread *t_tick; /* LSP walker */ | |
eb5d44eb | 74 | struct thread *t_lsp_refresh[ISIS_LEVELS]; |
414766a1 CF |
75 | /* t_lsp_refresh is used in two ways: |
76 | * a) regular refresh of LSPs | |
77 | * b) (possibly throttled) updates to LSPs | |
78 | * | |
79 | * The lsp_regenerate_pending flag tracks whether the timer is active | |
80 | * for the a) or the b) case. | |
81 | * | |
82 | * It is of utmost importance to clear this flag when the timer is | |
83 | * rescheduled for normal refresh, because otherwise, updates will | |
84 | * be delayed until the next regular refresh. | |
85 | */ | |
3f045a08 | 86 | int lsp_regenerate_pending[ISIS_LEVELS]; |
f390d2c7 | 87 | |
eb5d44eb | 88 | /* |
89 | * Configurables | |
90 | */ | |
91 | struct isis_passwd area_passwd; | |
92 | struct isis_passwd domain_passwd; | |
93 | /* do we support dynamic hostnames? */ | |
94 | char dynhostname; | |
95 | /* do we support new style metrics? */ | |
f390d2c7 | 96 | char newmetric; |
2984d26e | 97 | char oldmetric; |
eb5d44eb | 98 | /* identifies the routing instance */ |
f390d2c7 | 99 | char *area_tag; |
eb5d44eb | 100 | /* area addresses for this area */ |
f390d2c7 | 101 | struct list *area_addrs; |
102 | u_int16_t max_lsp_lifetime[ISIS_LEVELS]; | |
103 | char is_type; /* level-1 level-1-2 or level-2-only */ | |
3f045a08 JB |
104 | /* are we overloaded? */ |
105 | char overload_bit; | |
7ed55a41 AN |
106 | /* L1/L2 router identifier for inter-area traffic */ |
107 | char attached_bit; | |
eb5d44eb | 108 | u_int16_t lsp_refresh[ISIS_LEVELS]; |
109 | /* minimum time allowed before lsp retransmission */ | |
110 | u_int16_t lsp_gen_interval[ISIS_LEVELS]; | |
111 | /* min interval between between consequtive SPFs */ | |
f390d2c7 | 112 | u_int16_t min_spf_interval[ISIS_LEVELS]; |
eb5d44eb | 113 | /* the percentage of LSP mtu size used, before generating a new frag */ |
f390d2c7 | 114 | int lsp_frag_threshold; |
eb5d44eb | 115 | int ip_circuits; |
3f045a08 JB |
116 | /* logging adjacency changes? */ |
117 | u_char log_adj_changes; | |
eb5d44eb | 118 | #ifdef HAVE_IPV6 |
119 | int ipv6_circuits; | |
f390d2c7 | 120 | #endif /* HAVE_IPV6 */ |
eb5d44eb | 121 | /* Counters */ |
122 | u_int32_t circuit_state_changes; | |
f3ccedaa CF |
123 | struct isis_redist redist_settings[REDIST_PROTOCOL_COUNT] |
124 | [ZEBRA_ROUTE_MAX + 1][ISIS_LEVELS]; | |
125 | struct route_table *ext_reach[REDIST_PROTOCOL_COUNT][ISIS_LEVELS]; | |
f1082d19 | 126 | |
eb5d44eb | 127 | #ifdef TOPOLOGY_GENERATE |
f390d2c7 | 128 | struct list *topology; |
3f045a08 | 129 | u_char topology_baseis[ISIS_SYS_ID_LEN]; /* IS for the first IS emulated. */ |
f1082d19 | 130 | char *topology_basedynh; /* Dynamic hostname base. */ |
131 | char top_params[200]; /* FIXME: what is reasonable? */ | |
132 | #endif /* TOPOLOGY_GENERATE */ | |
eb5d44eb | 133 | }; |
134 | ||
f390d2c7 | 135 | void isis_init (void); |
3f045a08 JB |
136 | void isis_new(unsigned long); |
137 | struct isis_area *isis_area_create(const char *); | |
f90a5f6f | 138 | struct isis_area *isis_area_lookup (const char *); |
3f045a08 JB |
139 | int isis_area_get (struct vty *vty, const char *area_tag); |
140 | void print_debug(struct vty *, int, int); | |
141 | ||
142 | /* Master of threads. */ | |
143 | extern struct thread_master *master; | |
eb5d44eb | 144 | |
145 | #define DEBUG_ADJ_PACKETS (1<<0) | |
146 | #define DEBUG_CHECKSUM_ERRORS (1<<1) | |
147 | #define DEBUG_LOCAL_UPDATES (1<<2) | |
148 | #define DEBUG_PROTOCOL_ERRORS (1<<3) | |
149 | #define DEBUG_SNP_PACKETS (1<<4) | |
150 | #define DEBUG_UPDATE_PACKETS (1<<5) | |
151 | #define DEBUG_SPF_EVENTS (1<<6) | |
152 | #define DEBUG_SPF_STATS (1<<7) | |
153 | #define DEBUG_SPF_TRIGGERS (1<<8) | |
154 | #define DEBUG_RTE_EVENTS (1<<9) | |
155 | #define DEBUG_EVENTS (1<<10) | |
c89c05dd | 156 | #define DEBUG_ZEBRA (1<<11) |
3f045a08 | 157 | #define DEBUG_PACKET_DUMP (1<<12) |
14872644 | 158 | #define DEBUG_LSP_GEN (1<<13) |
414766a1 | 159 | #define DEBUG_LSP_SCHED (1<<14) |
14872644 CF |
160 | |
161 | #define lsp_debug(...) \ | |
162 | do \ | |
163 | { \ | |
164 | if (isis->debugs & DEBUG_LSP_GEN) \ | |
165 | zlog_debug(__VA_ARGS__); \ | |
166 | } \ | |
167 | while (0) | |
eb5d44eb | 168 | |
414766a1 CF |
169 | #define sched_debug(...) \ |
170 | do \ | |
171 | { \ | |
172 | if (isis->debugs & DEBUG_LSP_SCHED) \ | |
173 | zlog_debug(__VA_ARGS__); \ | |
174 | } \ | |
175 | while (0) | |
176 | ||
eb5d44eb | 177 | #endif /* ISISD_H */ |